Separator



Aug. 4, 1931. P. a. SHEE SEPARATOR Filed April; 5.. 1930 UGTiZZTTI Parke 13 577,6 0 M 4 securely sealed Patented Aug. 4, 1931 1 PARKE B. SHEE,

OF oak rnnx, ILLINOIS, ASSIGNOR T0 snans nonnucx AND ed, on

CHICAGO, ILLINOIS, A coRroIin'r-Ion'i orannw Yo'nx I SEPARATOB Application filed April 5, 1950, a tif anIW,

The invention relates generally to acentrifugal separator and more particularly to a, bowl assembly for such a separator.

The general object of the invention isto provide a novel bowl assembly comprising a bowl and bowl cover having great stiiiness and rigidity and capable of withstanding without distortion the stress placed thereon when they are assembled and. rotated at a high speed. I Y

Another object is to provide such a bowl assembly in which the bowl and bowl cover are together when assembled to prevent any leakage of liquid when the'assembly is rotated at high speed. c A further object is to provide such a bowl assembly, in which the cover permits of easy attachment of balancing weights.

Other objects and'advantages will become apparent from the following description taken in connection with the accompanying drawings, in which:

Figure 1 is an elevational view. partly in section of a bowl assembly embodying the features of the invention.

Fig. 2 is a fragmentaryview taken along the line2 2 of Fig. 1.

While the invention is susceptible of variv ous modifications and alternate constructions, I have shown in the drawings and will herein describe indetail the preferred embodiment,

but it isto be understood that I do not there) by intend to limit theinvention to the specific form disclosed but intend to cover all m'odifications and alternative constructions falling within the spirit and scope ofthe-invention as expressed in the appended claims.

In a centrifugal separator, is provided which is adapted 'to be seated upon the upper end of a drive shaft and to be rotated at a relatively high speed thereby;

Unseparated liquid is introduced into the bowl assembly, wherein theseparation takes place.

The bowl assembly comprises in general a bowl and a bowl cover which are clamped together'by means exerting an axial pressure.

Sealing means are provided between the bowl and cover to prevent leakage of the liquid from the assembly whenit is rotated comprises 7 cylindrical "side ll having arim 12 which to bear tightly against the rim 12. 20 thus forms an internal annular groove a bowl assembly at the-hi h?speedimparted by the drive shaft;

as illustrated inthef drawings, the bowl abottom 10 and a substantially turned inwardly and thenupwardly to form a shoulder1'3. An annularg'asl'zet 14; madeof rubber'or the like and having a circular cross sectionrests onthe' shoulder13. A stem 15 is fixed to the bottom 10'ofthe-bowl and projects centrally upward therefrom.

The bowl cover comprises a conical section 16 and a flange 17 extendingoutwardlyffrom the conical'section 16 and seated upon the rim 12 of the bowlan'd upon the gasket 14., 'A skirt 18' extendsdownwardlyv fromthe flange 17-andsurrounds the rim 12, the gasket 14, and-the sidewall ll. f

c The bowl and bowl cover are clamped to I gether by Ineans applying axial" pressure,

which comprises a'nut-19'threaded to the top of the stem 15 and-abutting the upper end of the cove'rf- "'I *To prevent distortion of the cover when it isclamped'tothe'bowl and rotated at a high- 7 speed, an annular rib 20 is formed in the cover by bending inwardly the lower portion of the conical section 16 adjacent the flange 17, which'rib stiffens the cover and causes it The rib with the conical section 16in which weights 21 for balancing The skirt stiffen it and to prevent distortion by the pressure of clamping and of rotation.-

From the above description, it is apparent may be placed at the re-. (11111136. points about the circle. Y

18 also has anannular rib 22 to that I have provided a novel bowl assembly having great stiffness and rigidity and capable of withstanding without distortion the stress placed thereon by the clamping and the rotation. It is also apparent thatI have provided a bowl assembly in which the bowl and cover are securely sealed together, and in which the cover permits ofeasy attachment of balancing weights.

I claim as my invention:

1. In a centrifugal separator, sembly' comprising, in combination, a bowl having a rim, a stem projecting centrally upa bowl as I V ward from the bottom of said bowl, a cover having a conical section and a flange extending radiall outward therefrom seated on the rim of said bowl, and a nut threaded to said stem and clamping said cover against the rim of the bowl, said cover having a rib formed by bending inward to a diameter less than the diameter of the rim of the bowl the end of the conical section adjoining said flange to stiffen said cover and to cause said flange to bear tightly against the rim of the bowl when clamped by said nut.

; the larger end of structed to bear against the bowl, and an in- 2. In a centrifugal separator, a bowl cover havlng a conlcal sectlon, an annular flange at said conical section conwardly turned annular rib between said flange andvsaid conical section, said ribforming an annular groove with said conical section closely adjacent said flange in which weights for balancing may be placed.

3. I In a centrifugal separator, the combination of a bowl having a substantially cylindrical side, the rim of which is turned inwardly and then upwardly to form a shoulder, a gasket fitting on said shoulder, a bowl cover comprising a conical section, a flange extending outwardly from said conical sec tion and seated upon said T1111 and sand gas- Let, and a downwardly extending skirt surrounding the rim of said bowl and the gasket, and means for clamping said cover and said bowl together by axially applied pressure, said conical section having an annular stiffen- 15 ing rib adjacent said flange, and said skirt having an annular stiflenin rib intermediate its ends, said ribs being a apted to prevent distortion of the portions of said cover which bear on said bowl when the former is clamped to said bowl. V I

In testimony whereof, I have hereunto affixed my signature. I

PARKE B. SHEE. 

